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Refactor using of stencil clipping in WebGL render #3250

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Merged
merged 2 commits into from
Apr 7, 2016
Merged

Refactor using of stencil clipping in WebGL render #3250

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3aa4239
Refactor using of stencil clipping in WebGL render
1scaR1 Mar 31, 2016
c16cd4b
Remove useless "_drawFullScreenQuadClearStencil" function
1scaR1 Apr 1, 2016
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64 changes: 8 additions & 56 deletions cocos2d/clipping-nodes/CCClippingNodeWebGLRenderCmd.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -32,15 +32,7 @@
this._afterDrawStencilCmd = new cc.CustomRenderCmd(this, this._onAfterDrawStencil);
this._afterVisitCmd = new cc.CustomRenderCmd(this, this._onAfterVisit);

this._currentStencilFunc = null;
this._currentStencilRef = null;
this._currentStencilValueMask = null;
this._currentStencilFail = null;
this._currentStencilPassDepthFail = null;
this._currentStencilPassDepthPass = null;
this._currentStencilWriteMask = null;
this._currentStencilEnabled = null;
this._currentDepthWriteMask = null;
this._mask_layer_le = null;
};

Expand Down Expand Up @@ -142,33 +134,6 @@
node._stencil._parent = node;
};

proto._drawFullScreenQuadClearStencil = function () {
// draw a fullscreen solid rectangle to clear the stencil buffer
var projStack = cc.projection_matrix_stack;
//cc.kmGLMatrixMode(cc.KM_GL_PROJECTION);
//cc.kmGLPushMatrix();
//cc.kmGLLoadIdentity();
projStack.push();
projStack.top.identity();

//cc.kmGLMatrixMode(cc.KM_GL_MODELVIEW);
//cc.kmGLPushMatrix();
//cc.kmGLLoadIdentity();
var modelViewStack = cc.modelview_matrix_stack;
modelViewStack.push();
modelViewStack.top.identity();

cc._drawingUtil.drawSolidRect(cc.p(-1, -1), cc.p(1, 1), cc.color(255, 255, 255, 255));

//cc.kmGLMatrixMode(cc.KM_GL_PROJECTION);
//cc.kmGLPopMatrix();
projStack.pop();

//cc.kmGLMatrixMode(cc.KM_GL_MODELVIEW);
//cc.kmGLPopMatrix();
modelViewStack.pop();
};

proto._onBeforeVisit = function(ctx){
var gl = ctx || cc._renderContext, node = this._node;
cc.ClippingNode.WebGLRenderCmd._layer++;
Expand All @@ -182,28 +147,19 @@
this._mask_layer_le = mask_layer | mask_layer_l;
// manually save the stencil state
this._currentStencilEnabled = gl.isEnabled(gl.STENCIL_TEST);
this._currentStencilWriteMask = gl.getParameter(gl.STENCIL_WRITEMASK);
this._currentStencilFunc = gl.getParameter(gl.STENCIL_FUNC);
this._currentStencilRef = gl.getParameter(gl.STENCIL_REF);
this._currentStencilValueMask = gl.getParameter(gl.STENCIL_VALUE_MASK);
this._currentStencilFail = gl.getParameter(gl.STENCIL_FAIL);
this._currentStencilPassDepthFail = gl.getParameter(gl.STENCIL_PASS_DEPTH_FAIL);
this._currentStencilPassDepthPass = gl.getParameter(gl.STENCIL_PASS_DEPTH_PASS);

gl.clear(gl.DEPTH_BUFFER_BIT);
// enable stencil use
gl.enable(gl.STENCIL_TEST);
gl.stencilMask(mask_layer);
this._currentDepthWriteMask = gl.getParameter(gl.DEPTH_WRITEMASK);

gl.depthMask(false);

gl.clear(gl.STENCIL_BUFFER_BIT);
gl.stencilFunc(gl.NEVER, mask_layer, mask_layer);
gl.stencilOp(!node.inverted ? gl.ZERO : gl.REPLACE, gl.KEEP, gl.KEEP);

this._drawFullScreenQuadClearStencil();
gl.stencilOp(gl.REPLACE, gl.KEEP, gl.KEEP);

gl.stencilFunc(gl.NEVER, mask_layer, mask_layer);
gl.stencilOp(!node.inverted ? gl.REPLACE : gl.ZERO, gl.KEEP, gl.KEEP);
gl.stencilMask(mask_layer);
gl.clear(gl.STENCIL_BUFFER_BIT);

if (node.alphaThreshold < 1) { //TODO desktop
var program = cc.shaderCache.programForKey(cc.SHADER_POSITION_TEXTURECOLORALPHATEST);
Expand All @@ -217,18 +173,14 @@

proto._onAfterDrawStencil = function(ctx){
var gl = ctx || cc._renderContext;
gl.depthMask(this._currentDepthWriteMask);

gl.stencilFunc(gl.EQUAL, this._mask_layer_le, this._mask_layer_le);
gl.depthMask(true);
gl.stencilFunc(!this._node.inverted ? gl.EQUAL : gl.NOTEQUAL, this._mask_layer_le, this._mask_layer_le);
gl.stencilOp(gl.KEEP, gl.KEEP, gl.KEEP);
};

proto._onAfterVisit = function(ctx){
var gl = ctx || cc._renderContext;

gl.stencilFunc(this._currentStencilFunc, this._currentStencilRef, this._currentStencilValueMask);
gl.stencilOp(this._currentStencilFail, this._currentStencilPassDepthFail, this._currentStencilPassDepthPass);
gl.stencilMask(this._currentStencilWriteMask);

if (!this._currentStencilEnabled)
gl.disable(gl.STENCIL_TEST);

Expand Down
54 changes: 8 additions & 46 deletions extensions/ccui/layouts/UILayoutWebGLRenderCmd.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -31,15 +31,6 @@
this._needDraw = false;

this._currentStencilEnabled = 0;
this._currentStencilWriteMask = 0;
this._currentStencilFunc = 0;
this._currentStencilRef = 0;
this._currentStencilValueMask = 0;
this._currentStencilFail = 0;
this._currentStencilPassDepthFail = 0;
this._currentStencilPassDepthPass = 0;
this._currentDepthWriteMask = false;

this._mask_layer_le = 0;

this._beforeVisitCmdStencil = new cc.CustomRenderCmd(this, this._onBeforeVisitStencil);
Expand Down Expand Up @@ -85,45 +76,31 @@

// manually save the stencil state
this._currentStencilEnabled = gl.isEnabled(gl.STENCIL_TEST);
this._currentStencilWriteMask = gl.getParameter(gl.STENCIL_WRITEMASK);
this._currentStencilFunc = gl.getParameter(gl.STENCIL_FUNC);
this._currentStencilRef = gl.getParameter(gl.STENCIL_REF);
this._currentStencilValueMask = gl.getParameter(gl.STENCIL_VALUE_MASK);
this._currentStencilFail = gl.getParameter(gl.STENCIL_FAIL);
this._currentStencilPassDepthFail = gl.getParameter(gl.STENCIL_PASS_DEPTH_FAIL);
this._currentStencilPassDepthPass = gl.getParameter(gl.STENCIL_PASS_DEPTH_PASS);

gl.enable(gl.STENCIL_TEST);

gl.stencilMask(mask_layer);
gl.clear(gl.DEPTH_BUFFER_BIT);

this._currentDepthWriteMask = gl.getParameter(gl.DEPTH_WRITEMASK);
gl.enable(gl.STENCIL_TEST);

gl.depthMask(false);

gl.stencilFunc(gl.NEVER, mask_layer, mask_layer);
gl.stencilOp(gl.ZERO, gl.KEEP, gl.KEEP);
gl.stencilOp(gl.REPLACE, gl.KEEP, gl.KEEP);

// draw a fullscreen solid rectangle to clear the stencil buffer
this._drawFullScreenQuadClearStencil();
gl.stencilMask(mask_layer);
gl.clear(gl.STENCIL_BUFFER_BIT);

gl.stencilFunc(gl.NEVER, mask_layer, mask_layer);
gl.stencilOp(gl.REPLACE, gl.KEEP, gl.KEEP);
};

proto._onAfterDrawStencil = function(ctx){
var gl = ctx || cc._renderContext;
gl.depthMask(this._currentDepthWriteMask);
gl.depthMask(true);
gl.stencilFunc(gl.EQUAL, this._mask_layer_le, this._mask_layer_le);
gl.stencilOp(gl.KEEP, gl.KEEP, gl.KEEP);
};

proto._onAfterVisitStencil = function(ctx){
var gl = ctx || cc._renderContext;
// manually restore the stencil state
gl.stencilFunc(this._currentStencilFunc, this._currentStencilRef, this._currentStencilValueMask);
gl.stencilOp(this._currentStencilFail, this._currentStencilPassDepthFail, this._currentStencilPassDepthPass);
gl.stencilMask(this._currentStencilWriteMask);

if (!this._currentStencilEnabled)
gl.disable(gl.STENCIL_TEST);
ccui.Layout.WebGLRenderCmd._layer--;
Expand All @@ -141,22 +118,7 @@
var gl = ctx || cc._renderContext;
gl.disable(gl.SCISSOR_TEST);
};

proto._drawFullScreenQuadClearStencil = function(){
// draw a fullscreen solid rectangle to clear the stencil buffer
cc.kmGLMatrixMode(cc.KM_GL_PROJECTION);
cc.kmGLPushMatrix();
cc.kmGLLoadIdentity();
cc.kmGLMatrixMode(cc.KM_GL_MODELVIEW);
cc.kmGLPushMatrix();
cc.kmGLLoadIdentity();
cc._drawingUtil.drawSolidRect(cc.p(-1,-1), cc.p(1,1), cc.color(255, 255, 255, 255));
cc.kmGLMatrixMode(cc.KM_GL_PROJECTION);
cc.kmGLPopMatrix();
cc.kmGLMatrixMode(cc.KM_GL_MODELVIEW);
cc.kmGLPopMatrix();
};


proto.rebindStencilRendering = function(stencil){};

proto.transform = function(parentCmd, recursive){
Expand Down